Fender 150 Nickel Wound Super Bullets Electric Guitar Strings. The best of yesterday and today. We started with our pure nickelwound strings (same as the Original 150s) and added our newly improved, patented Bullet end. Designed especially for your tremolo-equipped electric guitar, the Bullet end lends additional tuning stability to the warm, full vintage sound of pure nickel. Strats only. 150"s are the traditional electric guitar string, with the pure nickel wire cover wrap - lightly rolled to reduce finger noise. 09-42 - 09, 11, 16, 24, 32, 42. 09-46 - 09, 11, 16, 26, 36, 46. 10-46 - 10, 13, 17, 26, 36, 46. 11-49 - 11, 14, 18, 28, 38, 49.